TY - JOUR AU - Choosit, Sawapat AU - Wattanapermpool, Jonggonnee AU - Bupha-Intr, Tepmanas PY - 2021/08/27 Y2 - 2026/03/01 TI - Myocardial Expression of Heart-Type Fatty Acid Binding Protein (h-FABP) in Various Cardiac Stress Conditions in Rats JF - Asian Medical Journal and Alternative Medicine JA - AMJAM VL - 21 IS - 2 SE - Original Articles DO - UR - https://asianmedjam.com/index.php/amjam/article/view/265 SP - 97-105 AB - <p><strong>Objective:</strong> The heart-type fatty acid binding protein (h-FABP) has recently been studied as the specific biomarker of myocardial injury. The present study aimed to investigate the potential stress conditions that affect the expression of h-FABP in the rat heart.<br><strong>Methods:</strong> Immunoblot analysis was used to quantify the protein expression of h-FABP in the heart under various cardiac stress conditions, including the effect of an aerobic training program, deprivation of ovarian sex hormones, angiotensin II-induced hypertension, doxorubicininduced cardiotoxicity, and type II diabetes.<br><strong>Results:</strong> No significant change in h-FABP protein expression in the heart was found after a 9-week exercise training compared to sedentary controls. Lack of female sex hormones for 10 weeks also had no effect on h-FABP protein expression. In addition, there was no change in h-FABP expression due to either 4-week angiotensin II infusion or doxorubicin treatment compared to their vehicle controls. A significant increase in h-FABP was demonstrated in the heart of spontaneous diabetes Torii (SDT) rats compared to those without diabetes (<em>P</em>-value &lt; 0.0001). There was a high correlation between degree of hyperglycemia and the myocardial expression of h-FABP protein (r<sup>2</sup> = 0.9252,<em> P</em>-value = 0.0022).<br><strong>Conclusion:</strong> The findings suggest that the expression of h-FABP in the heart is primarily regulated by available sources of energy, while cardiac hypertrophy and myocardial damage do not particularly contribute to h-FABP expression.</p> ER -